q
e
r
w
t
y
u
Adjusting Clearance between Needle and Hook
The clearance between needle and rotary hook should be – 0.10 to + 0.05 mm.
If not, make adjustment as follows:
1. Remove the needle plate, bobbin holder, base
cover, base lid, bed cover and attach the
master needle.
2. Turn the power switch ON and select pattern
No. 8.
3. Loosen screws A
q
, B
w
, C
e
and tighten
screw C
e
temporarily.
4. Turn the handwheel toward you and adjust the
clearance between the master needle
r
and
the tip of rotary hook
t
in the left and right
needle positions to – 0.10 to + 0.05 mm
y
by
moving the rotary hook set plate
u
up or
down.
5. Tighten screws A
q
, B
w
, C
e
.
6. Check the rotary hook driver gear and the
lower shaft gear backlash.
If gears mesh or engage tightly or loosely,
check “Adjusting Backlash between Hook
Drive Gear and Lower Shaft Gear”.
(see page 12)
7. Reattach the bed cover, base cover, base lid,
bobbin holder, needle plate and replace the
master needle
r
with the needle.
q
Screw A
w
Screw B
e
Screw C
r
Master Needle
t
Tip of Rotary Hook
y
– 0.10 to + 0.05 mm
u
Rotary Hook Set Plate
11
Summary of Contents for Memory Craft 10001
Page 1: ...SERVICING MANUAL...
Page 42: ...40...
